Vehicles Built in Two or More Stages

This document responds to a petition for reconsideration of the February 14, 2005 final rule under 49 U.S.C. Chapter 301 and its implementing regulations pertaining to vehicles built in two or more stages and, to a lesser degree, to altered vehicles. This document clarifies the recognition in that rule that under NHTSA's regulations, multistage vehicles may be treated as a separate type of vehicle, including, as appropriate, vehicles built on chassis-cab incomplete vehicles. This document also amends a provision of the temporary exemption procedures to allow, as appropriate, for exemption of multistage vehicles from standards based on dynamic testing. This document denies the remainder of the petition for reconsideration, which involved certification of multistage vehicles and responsibility for recalls of multistage vehicles.